Casio Computer Co., Ltd.

Smk Corporation

Sanki Engineering Co., Ltd.

Shigeru Yagi

Yuki Kotaka

Youichi Ushigome

Kiyoshi Asai

Yutaka Aoki

Kaoru Yoshida

Fuminori Sano

An antenna device of the present invention includes, in one aspect: a patch antenna having a resonant frequency at a first frequency; and a loop antenna having a resonant frequency at a second frequency that is different from the first frequency. A loop length of the loop antenna is such that standing waves are generated in the loop antenna when the loop antenna receives radio waves of the first frequency, and the patch antenna is disposed so as to magnetically couple with the loop antenna.

Antenna device and portable electronic device

An antenna device of the present invention includes an antenna element which transmits or receives an electromagnetic wave having a specific frequency by being supplied with electric power, a conductive element which is formed of a conductive material, arranged so as to be spaced apart from and face the antenna element, and serves as a parasitic element, and a housing having a sealed space therein. The antenna element is provided inside the housing, and the conductive element is provided on outer surface of the housing, or in inner part of the housing, or in a mount member by which the housing is worn on a human body, or in a holding member for holding the housing; the conductive element is electromagnetically coupled to the antenna element, resonates with the specific frequency; and transmits or receives the electromagnetic wave.

Antenna device

A multiband antenna includes a conductive antenna element portion and a conductive ground element portion which are provided on an insulating film. The antenna element portion includes a first antenna element having a length corresponding to a first resonance frequency, and a second antenna element having a length corresponding to a second resonance frequency. The ground element portion includes a first side having a length to resonate at the first resonance frequency, and a second side having a length to resonate at the second resonance frequency.

Multiband antenna and electronic device

An antenna with a built-in filter for use in an electronic device includes: an antenna element; and a circuit board unit connected to the antenna element, wherein the circuit board unit includes: a filter circuit that filters input and output signals of the antenna element; and a matching circuit that performs impedance matching of the antenna element.

Antenna with built-in filter and electronic device

Disclosed is a multiband planar antenna including: an insulating film, a first antenna section and a second antenna section facing to the first antenna section across a feeding point on a film, wherein the first antenna section includes: a first antenna element including a side having a length in an extending direction corresponds to a first resonance frequency; a shorter second antenna element at a predetermined distance from and in parallel with the first antenna element; and a first coupling section to couple the first and second antenna elements, wherein a length in the extending direction of a first clearance corresponds to a resonance frequency higher than the first resonance frequency, and wherein the second antenna section includes: third and fourth antenna elements; a second coupling section; and a second clearance similar to the above.

Multiband planar antenna and electronic equipment

Disclosed is a planar antenna, including: a film formed of a planar insulating material; an antenna portion which is a planar conductor on the film; and a ground portion which is a conductor to be grounded, wherein the antenna portion comprises: at least one first short stub; a first antenna element which is connected to the ground portion through the at least one first short stub and whose shape has such an angle that a distance between the first antenna element and the ground portion increases with increasing distance from a feeding point along the ground portion, the feeding point being provided between the first antenna element and the ground portion; a second short stub; and a second antenna element which is connected to the first antenna element through the second short stub.

Planar antenna and electronic device

Disclosed is a planar monopole antenna including: a film formed of an insulating material; an antenna element which is a single-body planar conductor on the film; and a ground element which is a planar conductor on the film and kept at ground potential, wherein the antenna element includes: a first pole element which is formed of a planar body of a conductive material and has a feeding point; a capacitor element having a capacitor component and a coil element having a coil component, each of which is formed of a planar body of a conductive material and formed integral with the first pole element; and a second pole element which is formed of a planar body of a conductive material and formed integral with the capacitor element and the coil element.

Planar monopole antenna and electronic device

A film antenna comprises a base film formed of an insulating material; and first and second antenna elements of film-like electric conductors formed on the base film, wherein each of the first and second antenna elements is a planar shape in which two end faces from a feed point to a tip have two different lengths or a planar shape in which an end face and a diagonal line from a feed point to a tip have two different lengths, a core wire of a coaxial cable is connected to the first antenna element at the feed point, an external conductor of the coaxial cable is connected to the second antenna element at the feed point, and the first and second antenna elements have an area as a capacitor for performing impedance matching.

Film antenna and electronic equipment

According to an embodiment, a plane circular polarization antenna comprises a flat insulating substrate and a conductor provided on the flat insulating substrate. The conductor comprises an inverted F antenna including a feeding point, a ground portion, the ground portion including a slot antenna including a slot, and a short-circuiting portion provided in a part of an area between the inverted F antenna and the slot antenna.

Plane circular polarization antenna and electronic apparatus

A connection structure for a camera module with an auto-focus feature and a module connector that eliminates the need for wires and FPCs for connection between motor signal terminals and a printed circuit substrate, as will as the need for solder connection operations is also eliminated. A cameras module with an auto-focus feature is equipped with a module base on which is disposed a camera signal contact terminal, and a main module unit on which is disposed a motor signal terminal extending from a side surface. A module connector includes an installation cavity for installing the camera module. A motor signal contact is disposed on the module connector, and the motor signal terminals are formed with a contact, which comes into contact with contacts of the motor signal contact when the camera module is installed in the installation cavity.

Structure of a camera module with auto-focus feature and a mobile connector therefore

The belt driving device of the present invention has left and right frames (5, 15) which upper ends are connected by a slide bed (16), an endless belt (20) being latched by a head pulley (21) which is disposed on a head end of frames (5, 15) and a tail pulley (21) disposed on a tail end thereof, and an actuator unit (12) of the belt detachably mounted on the frame under side. A drive pulley (30) is disposed in the actuator unit (12) and is supported by a frame body with a rubber spring so as to contact with an outer surface on the return side belt and inner pulleys (23, 24) are disposed on the frame under side at the actuator unit attaching position so as to contact with the return side belt inner surface. The drive pulley (30) is always pressed and energized to the inner pulley side by the rubber spring and the belt supported between the inner pulley and the drive pulley (30) is friction actuated by pressing the drive pulley from the belt outside. The take-up device can be eliminated from the device by pressing the drive pulley to the belt side.

Growing community of inventors

Tokyo, Japan

Shigeru Yagi